Existing knowledge evidences comes from commonsense knowledge sources. The system uses ConceptNet as its source of commonsense knowledge. ConceptNet is a crowd-sourced network of commonsense information, with concepts acting as nodes and relationships between concepts acting as edges [1]}. ConceptNet uses a finite set of relationships for its edges. We categorize the relationships in ConceptNet into the five types of narrative coherence relationships identified prior for use in the system. The system links concept nodes in ConceptNet to corresponding scene graph nodes and traverses the edges between concept nodes according to this categorization to provide commonsense evidence for narrative coherence relationships between scene graph nodes. Weights from ConceptNet determine the score of existing knowledge evidence evidence.
